Messages in this thread Patch in this message | | | From | Heikki Krogerus <> | Subject | [PATCH] uuid: Add helpers for finding UUID from an array | Date | Tue, 27 Aug 2019 14:49:18 +0300 |
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Matching function that compares every UUID in an array to a given UUID with guid_equal().
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> --- Hi,
I don't have a user for these helpers, but since they are pretty trivial, I figured that might as well propose them in any case. Though, I think there was somebody proposing of doing the same thing that these helpers do at one point, but just the hard way in the drivers, right Andy?
thanks, --- include/linux/uuid.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/include/linux/uuid.h b/include/linux/uuid.h index 0c631e2a73b6..13e4d99f26dd 100644 --- a/include/linux/uuid.h +++ b/include/linux/uuid.h @@ -48,6 +48,16 @@ static inline bool guid_is_null(const guid_t *guid) return guid_equal(guid, &guid_null); } +static inline bool guid_match(const guid_t *guids, const guid_t *guid) +{ + const guid_t *id; + + for (id = guids; !guid_is_null(id); id++) + if (guid_equal(id, guid)) + return true; + return false; +} + static inline bool uuid_equal(const uuid_t *u1, const uuid_t *u2) { return memcmp(u1, u2, sizeof(uuid_t)) == 0; @@ -63,6 +73,16 @@ static inline bool uuid_is_null(const uuid_t *uuid) return uuid_equal(uuid, &uuid_null); } +static inline bool uuid_match(const uuid_t *uuids, const uuid_t *uuid) +{ + const uuid_t *id; + + for (id = uuids; !uuid_is_null(id); id++) + if (uuid_equal(id, uuid)) + return true; + return false; +} + void generate_random_uuid(unsigned char uuid[16]); extern void guid_gen(guid_t *u); -- 2.23.0.rc1
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